I think that their efforts are folly and that they shouldn't bother with killing themselves for a cause. Society isn't just going to change its ways and be kind towards everybody just because you lit yourself on fire. That isn't how the world works. Society and everybody else will just move on regardless of you. Things will stay the same. Normies try their best to prevent any suicides from happening but, once a suicide actually does happen, they don't care about it and simply just move on with their life. I think that you'd have slightly more of a chance to ctb for a cause if you were a minor since all NT people are heavily biased and emotional towards minors but, even then, nothing about the world will change.
It's useless to ctb for a cause since what you're fighting for will never come to fruition